Biomass Heating Apparatus Oxygen Injection and Fume Recirculation
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Solution Overview
Problem
Existing biomass-fueled heating apparatuses suffer from poor performance, limited versatility, difficult management of gas production, discontinuous operation, and high pollutant emissions due to inefficient combustion processes.
Innovation Solution
A heating apparatus that utilizes thermochemical decomposition of biomass to produce combustible gases, which are then conveyed to a combustion chamber for efficient combustion, with recirculation of fumes to enhance combustion efficiency and reduce pollutant emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ambient air is introduced into the brazier to fuel combustion, then the combustion process can be sustained, but nitrogen oxides are produced which are very polluting
Solution Approach 1:
The patent extracts and separates the oxygen supply function from ambient air by introducing pure oxygen through injection means directly into the brazier. This removes the nitrogen component from the combustion process, eliminating nitrogen oxide formation while maintaining combustion sustainability through controlled oxygen delivery.
Solution Approach 2:
The patent uses pure oxygen as a strong oxidant instead of ambient air to fuel the combustion process. This accelerates and intensifies the combustion reaction while eliminating the nitrogen component that causes polluting emissions, achieving both reliable combustion and environmental protection.
2Productivity
If the combustion process occurs until biomass is completely consumed, then the heating apparatus can operate continuously, but it requires frequent manual reloading and ignition which interrupts operation
Solution Approach 1:
The patent implements an automated system where the control unit monitors biomass consumption and automatically triggers reloading and ignition sequences. The system serves itself by detecting when biomass is depleted and initiating the next combustion cycle without operator intervention, ensuring continuous heating operation.
Solution Approach 2:
The control unit continuously monitors the combustion process and biomass status, providing feedback that triggers automatic reloading and reignition when needed. This closed-loop control system maintains continuous operation by responding to actual operational conditions rather than requiring predetermined manual intervention.
3Power
If multiple combustion chambers are used to improve combustion efficiency, then heat generation is enhanced, but the device complexity increases
Solution Approach 1:
The patent divides the combustion process into two distinct stages occurring in the same chamber: primary combustion of biomass and secondary combustion of generated gases. This segmentation of combustion phases, rather than using multiple physical chambers, enhances heat generation while maintaining simple device structure through temporal and functional separation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus achieves continuous operation, improved management of gas production and heat generation, and significantly reduced pollutant emissions, enabling easier automation and more efficient energy production.
Implementation Method 1
the well-known process of pyrolysis, also called cracking, or gasification, of a biomass
Implementation Method 2
thermochemical decomposition means configured to receive a biomass which functions as fuel and a first comburent and suitable to thermochemically decompose the biomass
Implementation Method 3
a combustion chamber configured to receive both a second comburent and also the at least one combustible gas and suitable to develop heat by means of a flame, fed by the at least one combustible gas
Data Source
Figure 1~3
Figure 4~6
Figure 7
AI summary
Heating apparatus (10, 100, 200, 300), comprising both thermochemical decomposition means (M1) configured to receive a biomass (C) which functions as fuel and a first comburent (F1) and suitable to thermochemically decompose the biomass (C) and produce at least one combustible gas (S), and also a combustion chamber (20) configured to receive a second comburent (A) and the at least one combustible gas (S) and suitable to develop heat by means of a flame fed by the at least one combustible gas (S) and which produces fumes (F).